MegacityA megacity is a very large city, typically with a population of more than 10 million people. Precise definitions vary: the United Nations Department of Economic and Social Affairs in its 2018 "World Urbanization Prospects" report counted urban agglomerations having over 10 million inhabitants. A University of Bonn report held that they are "usually defined as metropolitan areas with a total population of 10 million or more people". Others list cities satisfying criteria of either 5 or 8 million and also having a population density of 2,000 per square kilometre.
BucharestBucharest (UKˌbuːkəˈrɛst , USˈbuːkərɛst ; București bukuˈreʃtj) is the capital and largest city of Romania. It is described as the cultural, financial, entertainment, and media center in the country with a significant influence in Eastern and Southeastern Europe as well. In geopolitical regards, Bucharest has been and still is an important capital of a state situated in Central and Eastern Europe, where noteworthy summits had taken place (for example the 2008 Bucharest summit).
YerevanYerevan (UKˌjɛrəˈvæn , US-ˈvɑːn , Երեւան jɛɾɛˈvɑn, sometimes spelled Erevan) is the capital and largest city of Armenia and one of the world's oldest continuously inhabited cities. Situated along the Hrazdan River, Yerevan is the administrative, cultural, and industrial center of the country, as its primate city. It has been the capital since 1918, the fourteenth in the history of Armenia and the seventh located in or around the Ararat Plain.
TunisTunis (تونس ) is the capital and largest city of Tunisia. The greater metropolitan area of Tunis, often referred to as "Grand Tunis", has about 2,700,000 inhabitants. , it is the third-largest city in the Maghreb region (after Casablanca and Algiers) and the eleventh-largest in the Arab world. Situated on a large Mediterranean Sea gulf (the Gulf of Tunis), behind the Lake of Tunis and the port of La Goulette (Ḥalq il-Wād), the city extends along the coastal plain and the hills that surround it.
BakuBaku (USbɑːˈkuː,_ˈbɑːkuː, UKbæˈkuː,_ˈbæku:; Bakı bɑˈcɯ) is the capital and largest city of Azerbaijan, as well as the largest city on the Caspian Sea and in the Caucasus region. Baku is below sea level, which makes it the lowest lying national capital in the world and also the largest city in the world below sea level. Baku lies on the southern shore of the Absheron Peninsula, on the Bay of Baku. Baku's urban population was estimated at two million people as of 2009.
Capital cityA capital city or just capital is the municipality holding primary status in a country, state, province, department, or other subnational entity, usually as its seat of the government. A capital is typically a city that physically encompasses the government's offices and meeting places; the status as capital is often designated by its law or constitution. In some jurisdictions, including several countries, different branches of government are in different settlements, sometimes meaning multiple official capitals.
